Riesel primes of the form 1103•2n-1

Current data

k , b : 1103 , 2 Type : Low Count : 14 Nash : 741 Max n : 1,900,000 Date : 2014-10-22

4406, 4638, 5156, 9830, 49730, 88070, 162884, 181416, 212876, 281676, 416384, 483326, 605478, 3558176

History

• 2018-05-25: Found n = 3558176, Peter Benson
• 2014-10-22: Checked n = 1700000 - 1900000, Peter Benson
• 2014-05-15: Checked n = 1570000 - 1700000, Peter Benson
• 2014-01-26: Checked n = 1400000 - 1570000, Peter Benson
• 2013-08-12: Checked n = 1300000 - 1400000, Peter Benson
• 2012-09-09: Checked n = 1200000 - 1300000, Peter Benson
• 2012-04-03: Checked n = 1100000 - 1200000, Peter Benson
• 2011-09-11: Checked n = 1000000 - 1100000, Peter Benson
• 2011-04-17: Checked n = 980000 - 1000000, Peter Benson
• 2011-03-12: Checked n = 960000 - 980000, Peter Benson
• 2011-02-04: Checked n = 940000 - 960000, Peter Benson
• 2011-01-02: Checked n = 920000 - 940000, Peter Benson
• 2010-11-20: Checked n = 900000 - 920000, Peter Benson
• 2010-10-09: Checked n = 880000 - 900000, Peter Benson
• 2010-08-15: Checked n = 860000 - 880000, Peter Benson
• 2010-06-27: Checked n = 840000 - 860000, Peter Benson
• 2010-05-21: Checked n = 820000 - 840000, Peter Benson
• 2010-04-10: Checked n = 800000 - 820000, Peter Benson
• 2010-03-09: Checked n = 780000 - 800000, Peter Benson
• 2010-02-08: Checked n = 770000 - 780000, Peter Benson
• 2010-02-02: Checked to n = 770000, Peter Benson
• 2009-06-17: Found n = 605478, Peter Benson
• 2009-02-23: Checked n = 350000 - 479264, NPLB Drive 9D, results fill-in only, released
• 2009-02-16: Checked n = 200000 - 350000, NPLB Drive 9C, results fill-in only, released
• 2009-01-28: Checked n = 50000 - 200000, NPLB Drive 9A, released
• 2009-01-21: Reserved by NPLB Drive 9D, for n = 350000 - 479264 results fill-in only
• 2009-01-21: Reserved by NPLB Drive 9C, for n = 200000 - 350000 results fill-in only
• 2009-01-09: Found n = 88070, Gary Barnes
• 2009-01-05: Reserved by NPLB Drive 9A, for n = 50000 - 200000
• 2008-08-20: Checked n = 35000 - 50000, Karsten Bonath
• 2008-07-29: Checked n = 10000 - 35000, Karsten Bonath
• 2007-07-26: Checked n = 1 - 50000, Gary Barnes, double-check n = 1 - 10000
• 2007-07-06: Checked n = 1 - 10000, Gary Barnes
• 2007-02-15: Checked to n = 500000, Thomas Ritschel
• 2004-04-17: Found n = 483326, Thomas Ritschel
• 2004-01-05: Found n = 416384, Thomas Ritschel
• 2003-11-06: Found n = 281676, Thomas Ritschel
• 2003-11-03: Found n = 212876, Thomas Ritschel
• 2003-10-29: Found n = 181416, Thomas Ritschel
• 2003-10-28: Found n = 162884, Thomas Ritschel
• 2000-02-13: Found n = 49730, David Broadhurst
• 1998: Found n = 4406, Yves Gallot